/Engine/Plugins/Runtime/Metasound/Source/MetasoundEditor/Public/MetasoundEditorGraphSchema.h
Promotes an input to a graph variable & respective getter node, using its respective literal value as the default value
[USTRUCT](Programming/UnrealArchitecture/Reference/Structs)() struct FMetasoundGraphSchemaAction_PromoteToVariable_AccessorNode : public [FMetasoundGraphSchemaAction_NodeWithMultipleOutputs](API\Plugins\MetasoundEditor\FMetasoundGraphSchemaAction_Node-)